Pronunciation: (wôrm'blud'id), [key]
1. Also,endothermic.designating or pertaining to animals, as mammals and birds, whose blood ranges in temperatures from about 98° to 112°F (37° to 44°C) and remains relatively constant, irrespective of the temperature of the surrounding medium; homoiothermal.
2. ardent, impetuous, or passionate: young and warm-blooded valor.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.